how to connect two lans?

DrKranium · 08-25-2006, 05:08 PM

I have a LAN (LAN1) that is working well and is connected to the internet. There is also a 2nd LAN (LAN2).

The nodes in LAN2 are connected to one another through netgear's WGT624 wireless router. All nodes in LAN2 can ping eachother. But this router has no connection to the internet. However one node (192.168.1.100) in LAN2 is also a node (192.168.0.100) on LAN1 so it can see the internet.

I have two questions:
1) How do I get WGT624 to send all packets from other machines through 192.168.1.100?
2) Then, do I use Masquerading to forward all requests from LAN2 to LAN1?

Brian1 · 08-25-2006, 06:35 PM

need a bit more info about hardware.
What is lan 1 using to connect to the internet?
Is lan1 a mix of wireless and wired or just wired?

If lan1 is on a wired router then how about making the wgt624 the main router and connect as many machines to this router. Leave one etherport open. With a cross over cable connect from lan1 router to the lan side of the other router. No connection to the wan side of router2. Now turn off any DHCP and set the wan side to something like 192.168.50.100. Something not used any where elses. Now the machines connected to the second router will either get an IP from the first router or if static use the same class C IP range as it is using and use the gateway on the lan side of router1. So in essence the second router is only using the switch portion of the device.

Brian1

DrKranium · 08-26-2006, 01:33 PM

The first router is a wireless Actiontec DSL router. It is my only option for an internet connection.

So I really need to know how to get all nodes from LAN2 to reach the internet through linux box 1 (lb1). lb1 is connected wirelessly to LAN1 (the actiontec router) and wired to LAN2.

Brian1 · 08-27-2006, 12:09 PM

Ok if I understand this the Aciontec DSL router is connected to the Internet. Then the Linux Box 1 connects to it wirelessly. Now you have a wired nic in Linux Box 1 and connect them to lan 2 machines.
Is this correct?
How do you wish to use the netgear?
Option:1 Leaving machines on lan2 to talk to each other and to Linux box 1 but not allow Linux Box 1 to connect to services on lan2.
Option:2 Have all machines on lan2 to talk to each other and have Linux box 1 but also allow Linux Box to connect to services on lan2.
I would go Option:1 so as to leave the linux box as a more secure router/firewall. Actually I doubt there is much difference.

Before going on lets make sure we are on the same page with your setup